Socket-insert for concrete constructions.



HUGUES BRUSSEL, F ST. LOUIS, MISSOURI, .ASSIGNOR TO REINFORCED-CONCRETE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION' 0F MISSOURI. v

SOCKET-INSERT FOR CONCRETE CONSTRUCTIONS.

' Specification of Letters Patent.

Patented Dec. 29, agili.,

Application filed I une 8, 1912. Serial No. 702,395.

lowing is a specification.

My inventlon relates to socket inserts for reinforced concrete construction, and more particularl to a metallic socket adapted for fastening face brick anglesand anchors for ornamental stone, terra cotta, brickwork, etc., to the sides of concrete girders, beams, lintels, and like structures. Owing to the fact that such fixtures are usually attached to the sides of girders, beams, and like structures at or near the base thereof, where the reinforcement, both horizontal and vertical, is most likely to be dense and is protected by an outer covering of concrete of only an inch or an inch and a half in thickness, it has been found that sockets having a flanged anchor integrally connected therewith by means of a pierced web or open frame, as heretofore used for fastening pipes and other fixtures to concrete ceilings and walls, could not be employed for the purpose stated, since the rigid flange, projecting inwardly beyond the outside vertical plane of the reinforcement, was bound to interfere with the proper setting either of the reinforcement or of the socket itself, and, further, because there was no concrete to afford a support or bearing at the lower end of the socket. Consequently, it has been the practice to secure these angles and other lixtures to reinforced concrete beams and other similar structures by means of bolts of not less than eight inches in length which were embedded in the beam 'above the longitudinal reinforcing rods. lThis method is objectionable, however, for the reason that such bolts must be accurately placed before pouring the concrete, thus requiring the boring of holes through the sides of the forms, or else the angles have to be set in the forms, thereby necessitating a complicated framing thereof: and, when a windbreak, as specified by many architects, was demanded, angles having a wider vertical flange than those ordinarily used were required, which meant quite an additional'expense.

The object of the invention is to provide a socket of the type having a hollow body wlth key-hole opening whichl is adapted to be inserted 'andvsecured in place-in the vertical side of a concrete structure, at or naarr the base thereof, without extending inwardl beyond the outer vertical plane of the reinforcement or, if further anchorage is required, may be secured by an anchor which 1s so connected therewith that it will not interfere either with the accurate positioning of the-socket or the proper placing of the reinforcement, thereby affording means for adjustably fastening angles of stock dimen` sions to such a structure so that their lower flanges may 11e either flush with the bottom thereof or may extend below the bottom to Y afford a wind-break.

With this end in view the invention cornprises certain novel features of construction, arrangement, and combinations of parts as hereinafter fully set forth and specifically claimed with reference to the accompanying drawings, in which- Figure 1 is a plan or front elevation of a socket embodying my invention; Fig. 2, a sectional view of the socket on the line '2 2 of Fig. l, and also showing, detached, a looped anchor adapted for use therewith;

and Fig. 3, a side elevation of the socket and detachable anchor in place in a reinforced concrete girder, shown in broken section, supporting an angle.

Referring to the drawings, the socket 5, of cast iron or other suitable material, has

formed in the body thereof a longitudinal channel or recess which is provided in the face of the socket with a key-hole opening 6 to admit and retain the head of a bolt 13. The sides 7 of the socket are tapered both from back 'to face and from top to bottom,

and projecting outwardly from each side is In practice the sockets are first secured in place against the inner face of the form or mold by means of nails which are driven into the form through the notches at the ends of the lugs, the lower ends of the sockets usually resting upon the bottom of the mold. rIhen, after the bottom of the mold has been covered with an inch or an .inch and a half of concrete and the rein-` forcing rods have been placed in position, the anchors are attached to the sockets with their looped ends extending inwardly above the longitudinal reinforcement and perhaps around some of the vertical reinforcement, and the remainder of the concrete is poured. And inally, the concrete having set and the mold having been removed, the heads of bolts 13 are inserted in the sockets and the angles 14 are bolted thereto in the manner shown in Fig. 3, the angles being adjustable vertically, by meansof the vertically elongated channels in the sockets, and horizontally, by means of a horizontal elongation of the holes in the angles through which the bolts pass. When inserted in the side of a reinforced concrete structure the socket is located wholly between the outer vertical surface of the concrete and' the outer vertical plane of the reinforcement and it is there held against lateral displacement by the bearings of its back and tapered sides, and against longitudinal displacement by the bearings of its upper end and tapered sides and lugs, upon the'concrete, the bearings thus provided being located above the lower end of the socket and so permitting that end to be placed duch with the lower edge or bottom of the structure. iin many cases it will be found that the dove-tailed joint formed between the tapering sides o the socket and the concrete in which it is embedded will be ample for the purpose, in which cases the lugs and detachable anchor `rod can be omitted; and, on the other hand,

where the anchor rod is used, the tapering of the sides of the socket is not essential and the taper in either one or both directions -inay be omitted if desired.

The invention as, specifically shown and described may of course be modified in its claim.

What l claim as new, and desire to secure by Letters Patent, is-l A socket for insertion in the side of a re-i inforced concrete girder or other similar construction flush with a face thereof, the said socket comprising a shallow hollow body having a vertically disposed keyhole opening in it's front Wall and a plain back wall and adapted to be inserted in the construction wholly outside the plane of its reinforcement, an anchor rod adapted to eX- 'details within the scope of the appended 

